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suppose half the mass of a 20 kilogram bicycle is in its wheels and that the wheels are effectively rings determine the
a spring of spring constant k 350 nm-1 is used to launch a 25-kg block along a horizontal surface by compressing the
in february 1955 a paratrooper fell 365 meter from an airplane without being able to open his chute but happened to
a rod of mass m and length x is supported on a knife edge at its midpoint a ball of clay m is dropped from rest from a
a platform is rotating at an angular speed of 25 rads a block is resting on this platform at a distance of 034 meter
a long solenoid has 108 turnscm and carries current an electron moves within the solenoid in a circle of radius 203 cm
it takes 180 joule of work to compress a certain spring 018 meter estimate what the force constant of the spring to
an electromagnetic field is generated bya a proton moving in a circleb an electron moving at a constant speed in a
the flywheel of a steam engine runs with a constant angular velocity of150 revmin when steam is shut off the friction
a south magnetic pole of a bar magnet representsa the starting point of a magnetic fieldb the ending point of a
the mean distance between earth and the sun is 150 x 1011 meter the average intensity of solar radiation incident on
the velocity of a 250 kg block sliding down a frictionless inclined plane is found to be 148 ms200 s later it has a
a 120 komega resistor and a capacitor are connected in series and then an 110 volt potential difference is suddenly
at the microscopic and macroscopic levels what is the physical significance of entropy why do professionals bother with
a gun is fired vertically into a m 131 kg block of wood at rest on a thin horizontal sheet directly above it if the
a 700 kilogram bowling ball collides head-on with a 200 kilogram bowling pin the pin flies forward with a speed of 293
the national transportation safety board is testing the crashworthiness of a new car the 2100 kilogram vehicle moving
an 198 g rifle bullet traveling 247 ms buries itself in a 356 kg pendulum hanging on a 262 m long string which makes
a scientist is investigating george bushs brain he should use a magnifying glass which is a simple convex lens he knows
a 919 meter ladder with a mass of 244 kilogram lies flat on the ground a painter grabs the top end of the ladder and
a 200 kilogram toboggan with 822 kilogram driver is sliding down a frictionless chute directed 339 degree below the
a computer memory stick has a power rating of 2310-4w and is connected to a 15v dc power supply for 65 hours decide1
a 500-kg elevator is pulled upward with a constant force of 5500 n for a distance of 500 m what is the net work done on
your friend is trapped in a castle tower you want to send her a message by attaching it to an arrow and shooting the
a hang glider and its pilot have a total mass of 175kg while executing a banked curve of radius 27m at a speed of 18 ms